Short phrase used to describe the anus of a male who enjoys a few fingers up the chuffer
“I heard that Callum Coxhead kid took a few digits up the gusset and said it was pleasurable”
“Jesus?! Really? He must have a right raging gravy tunnel”
A person who is thicc like gravy and has an open mind like a tunnel
Oh have you seen Jessica?
Yh shes a gravy tunnel aint she